Method of driving liquid crystal matrix display

Details Method of driving liquid crystal matrix display Method of driving liquid crystal matrix display

1983-12-27

1987-07-07

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340805, 340802, G09G 336

Patent

active

046790438

ABSTRACT:
A drive method for a liquid crystal matrix display panel whereby the display is driven as two or more separate regions, with each region being successively driven by row and column drive signals to display video data in a row-by-row manner during a drive phase while the remaining regions operate in a rest phase in which a potential substantially equal to zero is applied across the display elements of these other regions. The effective number of row electrodes to which sequential scanning signal pulses are applied, which determines the level of contrast obtainable with such a display panel when the number of display elements is large, is made equal to the number of row electrodes of each of these regions, so that a sufficiently high number of elements for high-resolution television display is attainable with a simple display panel and peripheral circuit configuration.

REFERENCES:
patent: 4019178 (1977-04-01), Hashimoto et al.
patent: 4281324 (1981-07-01), Nonomura et al.
patent: 4378557 (1983-03-01), Murata
patent: 4465999 (1984-08-01), Tsuzuki et al.
patent: 4532506 (1983-07-01), Kitazima et al.

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